Router(config)#ip route 0.0.0.0 0.0.0.0 172.16.10.2
Send all packets destined for networks not in my routing table to 172.16.10.2
Router(config)#ip route 0.0.0.0 0.0.0.0 s0/0
Send all packets destined for networks not in my routing table out my Serial 0/0 interface
